This series is about a man, Hong Siu Long who is from 21st century-Hong Kong travels back into the past during Warring States Period in China. Unfortunately, the time machine comes into an error when he is being transfered into the past. As a result, Hong Siu Long comes to the period which is three years earlier than he is supposed to be and therefore, he can't go back to the future. In effort to go back to the future, he tries to keep the history goes as it is supposed to be.

This TVB series, although lacking in historical detail, will echo with those familiar with the period depicted and the political atmosphere of the day. It is best watched after the viewer has seen a proper historical drama. The story starts out with the audience getting a glimpse of Louis's bravery and great skills and tactics in controlling an awkward situation. At the same time, the viewer is introduced into Louis's complicated love life, between Sonija and the other guy that Sonija is about to wed. Louis stupidly agrees to participate in an experiment conducted by a crazy physicist- to travel back in time to take a picture of the King of Qin during his coronation ceremony. In return he will get to use this time machine to go back in time and propose to his girlfriend before it was too late. The time machine takes him back too far to a time before the king was crowned so he ventures onto an unexpected journey. The humour in the series is mainly concentrated at the beginning, based on the "fish out of water" cultural clash theme. The show became more dramatic and less funny as it continued, with Louis's character, Siu Long becoming embroiled in various political intrigues as he fought to have the "rightful" King of Qin installed, so that history would occur as it should and he could return to the present.